CN203240249U - Engine oil pump with stable oil pressure - Google Patents
Engine oil pump with stable oil pressure Download PDFInfo
- Publication number
- CN203240249U CN203240249U CN 201320190968 CN201320190968U CN203240249U CN 203240249 U CN203240249 U CN 203240249U CN 201320190968 CN201320190968 CN 201320190968 CN 201320190968 U CN201320190968 U CN 201320190968U CN 203240249 U CN203240249 U CN 203240249U
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure
- pump
- engine
- engine oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model discloses an engine oil pump with stable oil pressure. The engine oil pump comprises a pump cover and a pump body. A pressure-limiting valve assembly and an engine oil channel are arranged in an inner cavity of the pump body. An oil inlet of the engine oil channel is communicated with a main oil channel of an engine. The engine oil pump is characterized in that a filter is arranged at the communicating position of the oil inlet of the engine oil channel and the main oil channel of the engine. The filter of the engine oil pump can enable engine oil entering the engine oil channel from the main oil channel of the engine to be very stable, so that moving, opening and closing of the pressure-limiting valve assembly are also stable, fluctuations of the oil pressure of the engine oil output by the pump body are small, a lubricating effect is improved and noise is reduced.
Description
Technical field
The utility model relates to the engine oil pump field, particularly the stable engine oil pump of a kind of oil pressure.
Background technique
Oil pump is occupied critical positions in engine lubrication system, when engine operation, driving oil pump ceaselessly turns round, force machine oil to enter oil passageway in the oil pump from the motor main oil gallery, again by oil pump extrude machine oil and according to the rules circuit carry out circulating lubrication, when the oil pressure in the pump housing surpasses certain pressure, can be by the pressure-limit valve assembly balance oil pressure in the pump housing.
But the oil passageway of oil pump of the prior art is directly to be communicated with by straight hole with the motor main oil gallery, because straight hole does not possess filter action, so the mobile switching of pressure-limit valve assembly is not steady, the machine oil hydraulic fluctuation ratio of pump housing output is larger, affect lubrication effect, also can increase noise.
The model utility content
Technical problem to be solved in the utility model is for shortcomings and deficiencies of the prior art, provide a kind of oil pressure stable engine oil pump, this oil pump can guarantee that the mobile of pressure-limit valve assembly opens and closes steadily, and the machine oil hydraulic fluctuation of pump housing output is little, improves lubrication effect and reduces noise.
The technical problem that the utility model solves can realize by the following technical solutions:
The engine oil pump that a kind of oil pressure is stable, comprise pump cover and the pump housing, described pump housing inner chamber is provided with pressure-limit valve assembly and oil passageway, the filler opening of described oil passageway is communicated with the main oil gallery of motor, it is characterized in that, be provided with wave filter in the connectivity part of the main oil gallery of the filler opening of described oil passageway and motor.
In a kind of preferred embodiment of the present utility model, described wave filter is one to be arranged on the filtering hole of described filler opening one side, and the import internal diameter in described filtering hole is greater than the outlet internal diameter.
In a kind of preferred embodiment of the present utility model, described pressure-limit valve assembly comprises valve plug screw, valve spring and valve plunger, described valve spring one end is connected with the valve plug screw, and the other end is connected with valve plunger, and described valve plunger is arranged between the hyperbaric chamber and low-pressure cavity of described pump housing inner chamber.
Owing to adopted technological scheme as above, wave filter of the present utility model can be to enter the machine oil of oil passageway by the main oil gallery of motor very steady, thereby the mobile switching of pressure-limit valve assembly is also steady, and the machine oil hydraulic fluctuation of pump housing output is little, improves lubrication effect and reduction noise.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of embodiment's of the utility model structural representation.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to illustrated in figures 1 and 2, the stable engine oil pump of a kind of oil pressure comprises pump cover 2 and the pump housing 1, the pump housing 1 inner chamber is provided with pressure-limit valve assembly and oil passageway 23, in the present embodiment, the pressure-limit valve assembly comprises valve plug screw 5, valve spring 4 and valve plunger 3, valve spring 4 one ends are connected with valve plug screw 5, and the other end is connected with valve plunger 3, and valve plunger 3 is arranged between the hyperbaric chamber 321 and low-pressure cavity 322 of the pump housing 1 inner chamber.
The filler opening 23a of oil passageway 23 is communicated with the main oil gallery of motor, connectivity part at the main oil gallery of the filler opening 23a side of oil passageway 23 and motor is provided with wave filter 6, in the present embodiment, wave filter 6 is a filtering hole, the import 6a internal diameter in filtering hole is greater than outlet 6b internal diameter, so machine oil steadily enters oil passageway 23 behind the wave hole after filtration.
Working principle of the present utility model is as follows:
An end large through import 6a from motor main oil gallery machine oil, pump valve is arrived in the little filtering hole of outlet 6b again through oil passageway 23, the draught control valve plunger 3 that overcomes valve spring 5 moves, when machine oil hydraulic during greater than valve spring 5 resistance, valve plunger 3 moves down, when valve plunger 3 is in valve opening position, the oil of hyperbaric chamber 321 flows to low-pressure cavity 322, thereby pump discharge pressure reduces, and motor main oil gallery pressure reduces; Otherwise, valve plunger 3 moves under valve spring 5 elastic force effects, so just realized the frequent movement of valve plunger 3, because the filter action through wave filter 6, the oil pump output oil pressure is stable, finally realized the stable of motor main oil gallery pressure, the machine oil hydraulic fluctuation is little, improves lubrication effect and reduces noise.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. engine oil pump that oil pressure is stable, comprise pump cover and the pump housing, described pump housing inner chamber is provided with pressure-limit valve assembly and oil passageway, the filler opening of described oil passageway is communicated with the main oil gallery of motor, it is characterized in that, be provided with wave filter in the connectivity part of the main oil gallery of the filler opening of described oil passageway and motor.
2. the stable engine oil pump of a kind of oil pressure as claimed in claim 1 is characterized in that, described wave filter is one to be arranged on the filtering hole of described filler opening one side, and the import internal diameter in described filtering hole is greater than the outlet internal diameter.
3. the stable engine oil pump of a kind of oil pressure as claimed in claim 2, it is characterized in that, described pressure-limit valve assembly comprises valve plug screw, valve spring and valve plunger, described valve spring one end is connected with the valve plug screw, the other end is connected with valve plunger, and described valve plunger is arranged between the hyperbaric chamber and low-pressure cavity of described pump housing inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190968 CN203240249U (en) | 2013-04-16 | 2013-04-16 | Engine oil pump with stable oil pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190968 CN203240249U (en) | 2013-04-16 | 2013-04-16 | Engine oil pump with stable oil pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203240249U true CN203240249U (en) | 2013-10-16 |
Family
ID=49317546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320190968 Expired - Fee Related CN203240249U (en) | 2013-04-16 | 2013-04-16 | Engine oil pump with stable oil pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203240249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225736A (en) * | 2013-04-16 | 2013-07-31 | 湖南机油泵股份有限公司 | Engine oil pump with stable oil pressure |
-
2013
- 2013-04-16 CN CN 201320190968 patent/CN203240249U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225736A (en) * | 2013-04-16 | 2013-07-31 | 湖南机油泵股份有限公司 | Engine oil pump with stable oil pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103225736A (en) | Engine oil pump with stable oil pressure | |
| CN201892018U (en) | Reflux pressure limiting rotor oil pump | |
| CN202073860U (en) | Threaded plug-in adjustable buffer overflow valve | |
| EP3498992B1 (en) | Internal combustion engine, lubrication system, and engine oil strainer | |
| CN105626258A (en) | Hydraulic-drive type variable-compression-ratio piston connection rod assembly | |
| CN204984527U (en) | Control system of guide's formula solenoid valve list chamber feedback variable displacement impeller pump | |
| CN205117709U (en) | Pressure limiting valve of oil pump | |
| CN203240249U (en) | Engine oil pump with stable oil pressure | |
| CN210461245U (en) | Compact hydraulic oil cylinder | |
| CN105965319A (en) | Oil-air lubricating device | |
| CN204828110U (en) | Shield constructs integrated washing function piece of screw conveyer hydraulic pressure closed system double speed valve | |
| CN107504212A (en) | A kind of lockable formula check valve of hydraulic control | |
| CN203516093U (en) | Pressure and flow control valve of steering oil pump | |
| CN202031833U (en) | Novel structure of car steering assisting pump | |
| CN204738854U (en) | Control system of single chamber of draining formula two -stage variable displacement impeller pump | |
| CN208487395U (en) | A kind of plunger oil pump | |
| CN2767729Y (en) | Multi-way reversing valve with diverter | |
| CN205654524U (en) | Take hydraulic pump of manual switching -over function | |
| CN206257320U (en) | The strong safety valve of stain resistance | |
| CN204852486U (en) | Case subassembly | |
| CN204693007U (en) | A kind of engine motor oil pump structure | |
| CN203420883U (en) | Geared oil pump provided with diversion port | |
| CN210771396U (en) | Quick and stable switch electromagnetic valve | |
| CN207761740U (en) | A kind of oil filter seating | |
| CN204512038U (en) | A kind of constant pressure valve for variable piston pumping pressure and flow control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 |